<template>
  <div class="login">
    <h1 class="login-title">若依后台管理系统</h1>
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
    >
      <h3 class="title">登录</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon
            slot="prefix"
            icon-class="user"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="password"
            class="el-input__icon input-icon"
          />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon
            slot="prefix"
            icon-class="validCode"
            class="el-input__icon input-icon"
          />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" />
        </div>
      </el-form-item>
      <el-checkbox
        v-model="loginForm.rememberMe"
        style="margin: 0px 0px 25px 2px"
        class="login_remember"
        >
        记住密码
       </el-checkbox>
      <el-form-item style="width: 100%">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width: 100%"
          @click.native.prevent="handleLogin"
          class="login-button"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right" v-if="register">
          <router-link 
            class="link-type" 
            :to="'/register'">
            立即注册
          </router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2022 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" },
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" },
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }],
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined,
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then((res) => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get("rememberMe");
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), {
              expires: 30,
            });
            Cookies.set("rememberMe", this.loginForm.rememberMe, {
              expires: 30,
            });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove("rememberMe");
          }
          this.$store
            .dispatch("Login", this.loginForm)
            .then(() => {
              // this.$router.push({ path: this.redirect || "/" }).catch(() => {});
              this.$router.push({ path: "/user/profile" }).catch(() => {});
            })
            .catch(() => {
              this.loading = false;
              if (this.captchaEnabled) {
                this.getCode();
              }
            });
        }
      });
    },
  },
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  position: relative;
  height: 100%;
  background-image: url("/images/login/loginbg.png");
  background-size: cover;
  color: #a4d6ef;
}

.login-title {
  width: 743px;
  position: absolute;
  left: 50%;
  top: 12%;
  transform: translate(-50%, -50%);
  color: #14d7d1;
  font-size: 50px;
  text-align: center;
}

.title {
  margin: 10px auto 48px auto;
  text-align: center;
  font-size: 26px;
  color: #2fd5ff;
}

.login-form {
  position: absolute;
  left: 50%;
  top: 54%;
  transform: translate(-50%, -50%);
  border-radius: 6px;
  background-image: url("/images/login/loginwindow.png");
  width: 743px;
  height: 525px;
  padding: 25px 70px 5px 70px;
  background-size: cover;
  .el-input {
    height: 60px;
    input {
      height: 60px;
      background: rgba(37, 232, 255, 0.1);
      border: 1px solid #25e8ff;
      padding-left: 70px;
      color: #a4d6ef;
      font-size: 20px;
    }
  }
  .input-icon {
    height: 40px;
    width: 50px;
    margin: 10px;
    color: #25e8ff;
  }
  .login_remember {
    color: #A4D6EF;
  }
  .login-button {
    height: 58px;
    font-size: 25px;
    color: #0a3a66;
    background-color: #14d7d1;
    > span {
      color: #0a3a66;
    }
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 60px;
  float: right;
  img {
    width: 100%;
    height: 100%;
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  font-family: Arial;
  font-size: 14px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}

.el-checkbox__input.is-checked .el-checkbox__inner{
    background-color: #25E8FF;
}

.el-checkbox__input.is-checked + .el-checkbox__label{
    color: #25E8FF;
}
</style>